Chaos Portal
From Archon Arcana - The KeyForge Wiki
Chaos Portal • Logos • Artifact • Rare • Action: Choose a house. Reveal the top card of your deck. If it is of that house, play it. • Artist: Gong Studios • Card Number: CotA (127), AoA (140), WC (162)
Commentary
With the exception of draw, if an ability references the top card of the deck and the deck is empty, the discard pile is not shuffled to form a new deck.
Source: Crucible Cast 4